20132321109 has 4 divisors (see below), whose sum is σ = 26843094816. Its totient is φ = 13421547404.

The previous prime is 20132321089. The next prime is 20132321117. The reversal of 20132321109 is 90112323102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20132321109 - 2⁸ = 20132320853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20132321129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3355386849 + ... + 3355386854.

It is an arithmetic number, because the mean of its divisors is an integer number (6710773704).

Almost surely, 2^20132321109 is an apocalyptic number.

It is an amenable number.

20132321109 is a deficient number, since it is larger than the sum of its proper divisors (6710773707).

20132321109 is an equidigital number, since it uses as much as digits as its factorization.

20132321109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6710773706.

The product of its (nonzero) digits is 648, while the sum is 24.

The spelling of 20132321109 in words is "twenty billion, one hundred thirty-two million, three hundred twenty-one thousand, one hundred nine".